基于N-B←N单位的NIR-II吸收单分散寡合体
Jin Xu1,2, Yingze Zhang1,2, Jun Liu1,2
1State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China.
Angewandte Chemie (International ed. in English)
|August 27, 2023
概括
研究人员开发了用于近红外II (NIRII) 光吸收的新有机分子. 这些新型-化合物对先进的光电子设备和生物应用具有前途.
科学领域:
- 材料科学 材料科学 材料科学
- 有机化学 有机化学
- 光电学是指光电子产品.
背景情况:
- 具有近红外II (NIRII) 光吸收的有机分子对于生物成像和光电子设备至关重要.
- 开发具有增强NIR II吸收性能的新材料仍然是一个活跃的研究领域.
研究的目的:
- 设计和合成具有强烈NIR II光吸收的新型单分散寡合物.
- 探索这些寡合体在光电子应用中的潜力,特别是有机光探测器 (OPD).
主要方法:
- 采用了利用共振N-B←N单元 (平衡的-共价和协调键) 的新分子设计策略.
- 合成了一系列基于与烯融合的4,4-二-4--4--3a,4a--s-indacene (TB) 的单分散寡合体.
- 描述了OPD中的光学特性和性能.
主要成果:
- 合成的结核病寡合体表现出强烈的NIR II吸收.
- 结核病体显示了迄今为止对寡合体报告的最长的吸收波长 (1169 nm).
- 使用结核病四聚体的有机光探测器表现出高特异性检测能力 (2.98×10^11 斯在1180 nm),与最先进的NIR II OPD相竞争.
结论:
- 新的共振N-B←N单元策略有效地创造了高效的NIR II吸收有机分子.
- 这些寡合物代表了NIR II应用的新一类高性能光电子材料.
- 这些发现为进一步开发先进的NIR II吸收材料开辟了道路.
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